Friday, February 6, 2015

RIGHT WHALE: New paper on North Atlantic right whale vocalizations in the central Gulf of Maine

Right whale (1980) Massachusetts Secretary of ...
Right whale (1980) Massachusetts Secretary of State: State Symbols (Photo credit: Wikipedia)
We are pleased to announce the publication of the following paper in Endangered Species Research.

Bort J, Van Parijs SM, Stevick PT, Summers E, Todd S (2015) North Atlantic right whale Eubalaena glacialis vocalization patterns in the central Gulf of Maine from October 2009 through October 2010. Endang Species Res 26:271-280


ABSTRACT: The central Gulf of Maine was recently identified as a persistent wintering ground and potential mating ground for non-calving North Atlantic right whale Eubalaena glacialis based on aerial survey data. However, these surveys were limited by bad weather and light. Here, we use passive acoustic monitoring to examine the long-term persistence of right whales in this area throughout a nearly continuous period from October 2009 through October 2010. Three archival marine acoustic recording units were deployed in the Outer Fall/central Gulf of Maine. The data were manually reviewed for right whale up-calls and gunshots to investigate seasonal and diel patterns. Up-calls and gunshots occurred seasonally, with the most calls recorded from October through January and fewer calls detected from February through July, increasing again in August through October. Up-calls were most frequent in November, and gunshots in December. There was a clear bimodal diel pattern in up-calls, with the majority of calls occurring between 04:00 through 08:00 h and 13:00 through 22:00 h. There was a clear peak in diel distribution of gunshots, with the majority of calls occurring between 16:00 and 22:00 h. Our data demonstrate the continuous presence of right whales in the central Gulf of Maine during the winter months. The rate of gunshots during winter months in Outer Fall supports the hypothesis that male advertisement and/or right whale mating behavior may be taking place in this region at that time.

The article is open access and may be found at the link below:

Alternatively, a PDF can be requested at:


Jacqueline Bort Thornton

Thursday, January 1, 2015

Ads for the OIL & GAS industry don't reflect the positions on this blog. They are chosen by Google based on the topics of conversation.

Check them out ... you might learn something interesting. I did! It's a massive industry that supports many, many smaller support businesses.

Conservation Law Foundation's Top 10 Blog Posts of 2014

CLF's Top 10 Blog Posts of 2014

Posted: 31 Dec 2014 08:08 AM PST

Kelp Forest and Cod at Cashes Ledge, 80 miles off the coast of Maine. ©Brian Skerry

It's been a great year for Conservation Law Foundation — and a great year on CLF Scoop. We've had lots of great posts by our advocates and volunteers. Here are our readers' most read posts for 2014.

Documents Reveal Governors' Gas and Hydropower Plan Shaped by Industry and Incomplete Analysis
Jun 24, 2014 by Christophe Courchesne

3 Things No One is Telling You About Rising Energy Costs
Oct 3, 2014 by Shanna Cleveland

CLF Files Freedom of Information Requests Seeking to Bring Transparency to the Regional Energy Strategy of the New England Governors
Mar 19, 2014 by Seth Kaplan

Cashes Ledge: New England's Ocean Oasis Now at Risk from Harmful Trawling
Mar 10, 2014 by Leah Fine

Finally: A Win for Transparency in the Federal Review of Alternatives to Northern Pass
Feb 11, 2014 by Christophe Courchesne

WANTED: Transactional Lawyers for Farmers and Food Entrepreneurs
Jun 9, 2014 by Elena Mihaly

Video: Take a 90-Second Dive on Cashes Ledge
Aug 27, 2014 by Priscilla Brooks

Boston-grown Greens, Coming Right Up! Mayor Approves Commercial Farming in Boston
Jan 15, 2014 by Elena Mihaly

A Big Day for Offshore Wind: Federal Court Overwhelmingly Rejects Cape Wind Opponents' Claims
Mar 14, 2014 by Sue Reid

Groundbreaking Settlement Reached on Salem Natural Gas Facility
Feb 18, 2014 by Laurie O'Reilly

The post CLF's Top 10 Blog Posts of 2014 appeared first on Conservation Law Foundation.